ĐỀ TÀI : Collins Cobuild Student´s Grammar Unit 1 Clause and sentence structure Main points * Simple sentences have one clause. * Clauses usually consist of a noun group as the subject, and a verb group. * Clauses can also have another noun group as the object or complement. * Clauses can have an adverbial, also called an adjunct. * Changing the order of the words in a clause can change its meaning. * Compound sentences consist of two or more main clauses. Complex sentences always include a subordinate clause, as well as one or more main clauses. 1 A simple sentence has one clause, beginning with a noun group called the subject. The subject is the person or thing that the sentence is about. This is followed by a verb group, which tells you what the subject is doing, or describes the subject's situation. I waited. The girl screamed.